netdev - Re: [PATCH net] netlink: pad nla_memcpy dest buffer with zeroes

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Message-Id: <20150331.140754.256262715966365806.davem@davemloft.net>
Date:	Tue, 31 Mar 2015 14:07:54 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	jbenc@...hat.com
Cc:	netdev@...r.kernel.org, tgraf@...g.ch
Subject: Re: [PATCH net] netlink: pad nla_memcpy dest buffer with zeroes

From: Jiri Benc <jbenc@...hat.com>
Date: Sun, 29 Mar 2015 16:05:28 +0200

> This is especially important in cases where the kernel allocs a new
> structure and expects a field to be set from a netlink attribute. If such
> attribute is shorter than expected, the rest of the field is left containing
> previous data. When such field is read back by the user space, kernel memory
> content is leaked.
> 
> Signed-off-by: Jiri Benc <jbenc@...hat.com>

Applied, thanks Jiri.
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